Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of Ka-Band 3 Stage MMIC Low Noise Amplifiers

KaBand 3단 MMIC 저잡음 증폭기 설계

  • 염인복 (한국전자통신연구원 무선방송기술연구소 위성통신시스템연구부) ;
  • 정진철 (한국전자통신연구원 무선방송기술연구소 위성통신시스템연구부) ;
  • 이성팔 (한국전자통신연구원 무선방송기술연구소 위성통신시스템연구부)
  • Published : 2000.11.01
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Abstract

A Ka Band 3-stage MMIC (Monolithic Microwave Integrated Circuits) LNA(Low Noise Amplifiers) has been designed. The MMIC LNA consists of two single-ended type amplication stapes and one balanced type amplication stage to satisfy noise figure characteristics and high gain and amplitude linearity. The 0.15um pHEMT has been used to provide a ultra low noise figure and high gain amplification. Series and Shunt feedback circuits were inserted to ensure high stability over frequency range of DC to 80 GHz. The size of designed MMIC LNA is 3100mm ${\times}$ 2400um(7.44$\textrm{mm}^2$). The on wafer measured noise figure of the MMIC LNA is less than 2.0 dB over frequency range of 22 GHz to 30 GHz.

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